Lock



S. SEGAL.

LOCK.

APPLICATION FILED IAN. I7, 1920.

Patented. Oct. 41, 1921.

A n. I I. 1 I n a I proved look as applied to a door.

sneer. METAL rnonucrs coma coaromrron or nnnewm afaearoa To all whom it may concern: Be it known that I, SAMUEL SEGAL, a citlzen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a specification.

My invention has for its object the production of a lock which shall be applied to a swinging door and which shall be of simple construction and of positive operation and which shall operate, when in locked position, to effectively prevent an unauthorized entrance through the door either by jimmying the lock or otherwise.

The invention consists briefly and essentially in the provision of a casing or other support fastened to the door and oontalnlng the locking mechanism and which shall contain one. or more locking bolts adapted to be actuated and to extend through the end wall of the casing and to interlock with a keeper fastened to the door frame as well as -with a stationary bar rigidly fastened or connected to the casing and means on the keeper adapted to interlock with the connecting-piece .or bar joining the stationary bar and casing together.

A practicalembodiment of the lnvention is illustrated in the accompanying drawing and will be more particularly described in the following specification havin reference thereto,'from which other and urther objects and. advantages of the inventlon will appear, the invention being thereafter spec1- fied in the claims appended hereto.

In the accompanying drawing:

Figure 1 is a front elevation of my 1m- Fig. 2 is a horizontal section on the line 2--2 of Fig. 1.

Fig. 3 is a rear elevation of the lock with its cover plate removed.

Fig. 4 is a horizontal section on the line 4-4 of Fig. 1.

Fig. 5 is a vertical cross-section on the line 5--5 of Fig. 1.

Fig. 6 is a vertical cross-section on the line 6-6 of Fig. 3.

Fig. 7 is a rear perspective view of-the lock casing.

Fig. 8 is a perspective view of the keeper.

Specification of Letters Patent.

be adapted to 1. S

Patented (Dot. 4, rear.

Application filed. January 17, 1920. SeriaI no. 352,066.

Referrm more particularly to the several e drawing:

1 mdlcates the front wall of a casing, 2 an end wall and 3 a removable cover plate adapted to rest on suitable lugs 4 fastened to the s de walls of the casing, and to be held in positlon on the lugs by a screw 5,-as shown, engag ng a post 6 fastened to the front wall aid casing 1s adapted to be fastened to a door 7 by sultable screws 8 passing through the front wall 1 and the cover plate 3- (see Fig. 6) with the wall 2 preferably in alinement with the space between the door and the doonframe which is indicated at 9..

1 O lndlcates a locking bolt mounted in the caslng'and horizontally slidable therein on the post 6. Said locking bolt is provided with sultable locking elements 11 adapted to extend through perforations 12 with which the end wall of the casin is provided and which provlde guides amf supports for the 1ock1 n elements. Said locking bolt is also prov1 ed with a notch 13 adjacent its end and with outwardly extending lugs 14 at either side of said notch and having opposed inclined surfaces as illustrated. Pivoted on the locking bolt as at 15, is a tumbler pawl 16 having a shoulder 17 on its lower side which is adapted to engage the post 6, said tumbler pawl being also provided with a hooked end 18 adapted to fit within the notch 13. The opposite end of the tumbler pawl is provided with a leaf spring 19 one end of which is fastened thereto, the opposite end of said pawl engaging a pin 20 on the locking bolt. The action of said leaf spring 19 tends to retain the hooked end of the tumbler pawl in the notch 13 intermediate the lugs 14 in an obvious manner and the shoulder 17 in engagement with the post 6.

21 indicates a knob mounted in the front wall of the casing and operable from the inside of the door and to the shank of which is attached an annular plate 22 provided with operating arms or fingers 23. A tumbler barrel 24 of a conventional form of cylinder lock is embedded in the door 7 and the shank 25 thereof extends through the removable cover plate 3 and carries on its end an annular plate 26 provided with operating arms or fingers 27.

28 indicates a stationary rigid bar which tegral structure for the purpose of strength The said.

and convenience of manufacture. rigid bar 28 is provided with holes 33 1n ahnement with the perforations 12 in the end wall 2, said holes being adapted to receive the ends of the locking elements 11 of the locking bolt when said locking elements are in closed or locked position.

34 and 35 indicate the flanges of a keeper forming an angle piece which are countersunk in the edge of the door frame and held by screws as illustrated and 36 indicates outwardly extending perforated ears preferably integral with .said flanges When the door is' closed and the lock is in locked position the perforated ears 36 extend or protrude within the spaces formed by the end wall 2, the rigid bar 28, the connecting bar 29 and upper and lower bars 31 and 32 and the locking elements 11 of the locking bolts extend through the perforations 1n the end wall 2, throu h the perforations in the ears 36 and into t e holes 33'of the rigid bar 28. Moreover an outwardly extending pin or stud' 37 with which the keeper is provided.

fits within the hole 30 of the connecting bar 29. These various parts interlocking with each other, provide a secure and effective locking means for the door as is manifest.

The locking bolt may be actuated either by turning the knob 21 on the inside of the door and thereby revolving the operating arms 23 of the annular plate 22 or by turning a key in the tumbler barrel 24 from without the door to effect a revolving of the arms 27 of the annular plate 26, each being operable independently of the other. Refern partcularly to Fig. 3 showing the loc g bolt in closed or locked position with the shoulder 17 engaging the rlght-hand side of the post 6 and held thereby the spring 19, it is obvious that the bolt cannot be withdrawn or brought into unlocked position until the shoulder 17 is released from' its engagement with the right-hand side of said post 6. This is effected by revolving the right-hand operating arm 27 in a counter-clockwise direction (or the operating arm 23 as the case may be) to cause the end of said arm to engage the hook 18 of the tumbler pawl thereby raising said tumbler pawl against the action of the leaf spring 19 and lifting the shoulder 17 from its engagement with the right-hand side of post 6. Further movement of the operating arm 27in the same direction causes the end of the same to engage the inclined side of the left-hand lug 14 to draw the locking bolt this position the shoulder 1} falls into engagement with the left-hand side of post 6 due to the action of the/leaf spring 19, the locking bolt being shown in, dotted lines in Fig. 3 just before it has reached unlocked position. The reverse operations are necessary to throw the locking bolt from' unlocked into locked position, but the particular mechanism just described and its operation are old in the art and it is thought require no further detailed explanation.

I am aware that it has been proposed to employ a separate bar somewhat similar in configuration to my improved rigid bar 28 which has been made movable and which has in fact been a part of the lockingbolt itself and has carried the locking elements which have been made an integral portion thereof. In practice, however, a lock of this character is impractical and weak forthe reason that when it is jimmiedthe art corresponding to the shoulder 17 described herein must stand all the strain of the jimmying and the lock soon gives way. In my case the lock'is 'immy-proof and the whole lock casing is su jected to an equal strain if it is attempted to jimmy or pry offfthe same and if the casing is partially moved, the rigid bar acts as a stop or obstruction against which the jimmy strikes to prevent further movement or dislodging of the casing.

What I claim as my invention is 1. In a look, a casing, a bar, a connecting bar rigidly joining said first-named bar and said casing, a keeper, a locking bolt adapted to interlock with said keeper and said first-named bar and means on said keeper lzgdapted to interlock with said connecting 2. In a lock, a casing, a bar, a connectin bar intermediate said first-named bar an said casing and provided with a hole therein, a keeper, a locking bolt adapted to interlock with said first-named bar and 'said' keeper and a stud on said keeper adapted to enter and interfit with a hole of the connecting bar.

' 3. In a lock, a casing having aperforated end wall, a bar rigidly fastened to said end wall and provided with holes therein, a stationary bar intermediate said end wall and said rigid bar and provided with a hole therein, a keeper provided with perforated ears and a locking bolt adapted to slide through the perforated end wall of the casing, through the perforated ears of the keeper and into the holes in said bar and means fastened to and extending transversely from said keeper adapted to enter the hole in said stationary bar.

4. In a lock, a casing having a perforated end wall, a bar provided with holes therein, a connecting bar rigidly joining said firstnamed bar and the end wall of the casing on the keeper adapted to enter the hole of 1% and provided with a hole therein, a keeper' said connecting bar.

having perforated ears adapted to extend 'Signed at New York, in the county of 'in the space between said first-named bar New York and State of New York, this 16th and said end Wall, a horizontally slidable day of January, A. D. 1920.

locking bolt within said casing adapted to SAMUEL SEGAL. operate through the perforated end wall, Witnesses: the perforated ears of the keeper and in GEORGE E. BROWN,

the holes of the first-named bar and a stud F. B. TOWNSEND. 

